190844940 has 288 divisors, whose sum is σ = 664070400. Its totient is φ = 40535040.

The previous prime is 190844933. The next prime is 190844963. The reversal of 190844940 is 49448091.

It is a super-2 number, since 2×190844940² = 72843582247207200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3234631 + ... + 3234689.

It is an arithmetic number, because the mean of its divisors is an integer number (2305800).

Almost surely, 2^190844940 is an apocalyptic number.

190844940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190844940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332035200).

190844940 is an abundant number, since it is smaller than the sum of its proper divisors (473225460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190844940 is a wasteful number, since it uses less digits than its factorization.

190844940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 190844940 is about 13814.6639481386. The cubic root of 190844940 is about 575.7406360270.

The spelling of 190844940 in words is "one hundred ninety million, eight hundred forty-four thousand, nine hundred forty".